2 * Copyright 2008-2014 Cisco Systems, Inc. All rights reserved.
3 * Copyright 2007 Nuova Systems, Inc. All rights reserved.
5 * Copyright (c) 2014, Cisco Systems, Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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38 #include "vnic_enet.h"
43 #include "vnic_intr.h"
44 #include "vnic_stats.h"
48 #include "cq_enet_desc.h"
50 #define DRV_NAME "enic_pmd"
51 #define DRV_DESCRIPTION "Cisco VIC Ethernet NIC Poll-mode Driver"
52 #define DRV_VERSION "1.0.0.6"
53 #define DRV_COPYRIGHT "Copyright 2008-2015 Cisco Systems, Inc"
57 #define ENIC_CQ_MAX (ENIC_WQ_MAX + ENIC_RQ_MAX)
58 #define ENIC_INTR_MAX (ENIC_CQ_MAX + 2)
60 #define VLAN_ETH_HLEN 18
62 #define ENICPMD_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
64 #define ENICPMD_BDF_LENGTH 13 /* 0000:00:00.0'\0' */
65 #define PKT_TX_TCP_UDP_CKSUM 0x6000
66 #define ENIC_CALC_IP_CKSUM 1
67 #define ENIC_CALC_TCP_UDP_CKSUM 2
68 #define ENIC_MAX_MTU 9000
69 #define ENIC_PAGE_SIZE 4096
70 #define PAGE_ROUND_UP(x) \
71 ((((unsigned long)(x)) + ENIC_PAGE_SIZE-1) & (~(ENIC_PAGE_SIZE-1)))
73 #define ENICPMD_VFIO_PATH "/dev/vfio/vfio"
74 /*#define ENIC_DESC_COUNT_MAKE_ODD (x) do{if ((~(x)) & 1) { (x)--; } }while(0)*/
76 #define PCI_DEVICE_ID_CISCO_VIC_ENET 0x0043 /* ethernet vnic */
77 #define PCI_DEVICE_ID_CISCO_VIC_ENET_VF 0x0071 /* enet SRIOV VF */
80 #define ENICPMD_FDIR_MAX 64
82 struct enic_fdir_node {
83 struct rte_eth_fdir_filter filter;
89 struct rte_eth_fdir_stats stats;
90 struct rte_hash *hash;
91 struct enic_fdir_node *nodes[ENICPMD_FDIR_MAX];
94 struct enic_soft_stats {
95 rte_atomic64_t rx_nombuf;
96 rte_atomic64_t rx_packet_errors;
99 /* Per-instance private data structure */
102 struct rte_pci_device *pdev;
103 struct vnic_enet_config config;
104 struct vnic_dev_bar bar0;
105 struct vnic_dev *vdev;
107 unsigned int port_id;
108 struct rte_eth_dev *rte_dev;
109 struct enic_fdir fdir;
110 char bdf_name[ENICPMD_BDF_LENGTH];
115 uint8_t mac_addr[ETH_ALEN];
116 pthread_t err_intr_thread;
124 unsigned int priv_flags;
127 struct vnic_wq wq[ENIC_WQ_MAX];
128 unsigned int wq_count;
131 struct vnic_rq rq[ENIC_RQ_MAX];
132 unsigned int rq_count;
134 /* completion queue */
135 struct vnic_cq cq[ENIC_CQ_MAX];
136 unsigned int cq_count;
138 /* interrupt resource */
139 struct vnic_intr intr;
140 unsigned int intr_count;
142 /* software counters */
143 struct enic_soft_stats soft_stats;
146 static inline unsigned int enic_cq_rq(__rte_unused struct enic *enic, unsigned int rq)
151 static inline unsigned int enic_cq_wq(struct enic *enic, unsigned int wq)
153 return enic->rq_count + wq;
156 static inline unsigned int enic_msix_err_intr(__rte_unused struct enic *enic)
161 static inline struct enic *pmd_priv(struct rte_eth_dev *eth_dev)
163 return (struct enic *)eth_dev->data->dev_private;
166 static inline uint32_t
167 enic_ring_add(uint32_t n_descriptors, uint32_t i0, uint32_t i1)
169 uint32_t d = i0 + i1;
170 d -= (d >= n_descriptors) ? n_descriptors : 0;
174 static inline uint32_t
175 enic_ring_sub(uint32_t n_descriptors, uint32_t i0, uint32_t i1)
178 return (uint32_t)((d < 0) ? ((int32_t)n_descriptors + d) : d);
181 static inline uint32_t
182 enic_ring_incr(uint32_t n_descriptors, uint32_t idx)
185 if (unlikely(idx == n_descriptors))
190 extern void enic_fdir_stats_get(struct enic *enic,
191 struct rte_eth_fdir_stats *stats);
192 extern int enic_fdir_add_fltr(struct enic *enic,
193 struct rte_eth_fdir_filter *params);
194 extern int enic_fdir_del_fltr(struct enic *enic,
195 struct rte_eth_fdir_filter *params);
196 extern void enic_free_wq(void *txq);
197 extern int enic_alloc_intr_resources(struct enic *enic);
198 extern int enic_setup_finish(struct enic *enic);
199 extern int enic_alloc_wq(struct enic *enic, uint16_t queue_idx,
200 unsigned int socket_id, uint16_t nb_desc);
201 extern void enic_start_wq(struct enic *enic, uint16_t queue_idx);
202 extern int enic_stop_wq(struct enic *enic, uint16_t queue_idx);
203 extern void enic_start_rq(struct enic *enic, uint16_t queue_idx);
204 extern int enic_stop_rq(struct enic *enic, uint16_t queue_idx);
205 extern void enic_free_rq(void *rxq);
206 extern int enic_alloc_rq(struct enic *enic, uint16_t queue_idx,
207 unsigned int socket_id, struct rte_mempool *mp,
209 extern int enic_set_rss_nic_cfg(struct enic *enic);
210 extern int enic_set_vnic_res(struct enic *enic);
211 extern void enic_set_hdr_split_size(struct enic *enic, u16 split_hdr_size);
212 extern int enic_enable(struct enic *enic);
213 extern int enic_disable(struct enic *enic);
214 extern void enic_remove(struct enic *enic);
215 extern int enic_get_link_status(struct enic *enic);
216 extern void enic_dev_stats_get(struct enic *enic,
217 struct rte_eth_stats *r_stats);
218 extern void enic_dev_stats_clear(struct enic *enic);
219 extern void enic_add_packet_filter(struct enic *enic);
220 extern void enic_set_mac_address(struct enic *enic, uint8_t *mac_addr);
221 extern void enic_del_mac_address(struct enic *enic);
222 extern unsigned int enic_cleanup_wq(struct enic *enic, struct vnic_wq *wq);
223 extern void enic_send_pkt(struct enic *enic, struct vnic_wq *wq,
224 struct rte_mbuf *tx_pkt, unsigned short len,
225 uint8_t sop, uint8_t eop, uint8_t cq_entry,
226 uint16_t ol_flags, uint16_t vlan_tag);
228 extern void enic_post_wq_index(struct vnic_wq *wq);
229 extern int enic_probe(struct enic *enic);
230 extern int enic_clsf_init(struct enic *enic);
231 extern void enic_clsf_destroy(struct enic *enic);
232 uint16_t enic_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
234 uint16_t enic_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
236 #endif /* _ENIC_H_ */